Draft-gear yoke.



NASH.

DRAFT GEAR YOKE.

APPLICATION FlLED FEB-5.1913.

' '1,%2,35. Patented Jan. 21,1919.

14/ mm i u W19 I '9 A?! '25 1/ Irv/12%;

v adapted for use in connection with so called t of the coupler run s'ra'rns r a'rnnr canton CHARLES J. NASH, CHICAGO, ILLINOIS, ASSIGNOR TO UNIVERSAL DRAFT GEAIL ATTACHMENT (30., A CORPORATION OF ILLINOIS.

DRAFT-GEAR YOKE.

Specification of Letters Patent. Pat ted J an. 21, 1919.

Application filed February 5, 1913. Serial No. 748,821.

To all whom it may concern:

Be it known that 1, CHARLES J. Nnsrr, a citizen of the United States, and resident of Chica 0, county of Cook, and State of Illinois ave invented certain new and useful improvements in Draft-Gear Yokes, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to yokes especially tandem draft gears for railway cars; that is to say, gears in which a plurality of springs or other shock absorbing elements are em ployed and are longitudinally alined.

The object of the invention is to provide positive buiiing connection between the butt shank and the yoke, other than any means such as keys or rivets which may be employed for attaching these elements together and it consists in a yoke having a shoulder against which the butt of the coupler shank bears.

The invention is illustrated in the accompanying drawings, in Which- Figure 1 is aplan view of the draft gear, partly in section, as applied to a car.

Fig. 2 is tion on' the line 22 ofFig. 1, and

Fig. 3 is a transverse section of on the line 33 of Fig. 2.

, There'is shown in the drawings portions of the center sills 10, 11, of a railway cc: and to which are secured draft plates 12, 13, of any I represented at 14: and 'as being attached by means of a key, 15, to the yoke, 16, which is shown as of the conventional M. C. B. type with check plates for the accommodation-of the attaching key,

the yoke The shock absorbing elements are here.

represented as a, pair of springs, 17, 18, in closed within the yoke and longitudinally aiined, each of the springs being located between a pair of followers, 19, 2t), and 31, 22, which (3061);31, o with suitable shoulders on the draft plates 12, 13.

The yoke, 16, is provided with a bridge, 23,

a detail longitudinal vertical sccdesired construction. The coupler is uniting its longitudinal members and located between the rearward of the forward pair of followers and the forward of the rearward pair. The yoke is also provided with a pair of instanding forwardly facing shoulders, 2- 25, formed on its longitudinal members and located substantially in the plane of the forward l'ace of the forward follower, 19, when the gear is in the central position. The butt 26, of the coupler, 14, extends beyond the top and bottom of the follower, 19, and bears against the shoulders, 24:, 25; The key, 15, fits loosely but without material lateral movement within the apertures formed in the cheek plates of the yoke and the butt of the coupler for its reception.

Buffing shocks are transmitted through the coupler directly upon the forward follower, 19, and through the shoulders; 24:, 25, the longitudinal members of the yoke, and its bridge, 23, to the follower, 21. The key, 15, is, therefore, not called upon to perform any duty in the, transmission of such shocks, thereby preventin its distortion, and, also, relieving the chee plates of the yoke from the violent shocks of impact. Inasmuch as buffing stresses are very much more severe than stresses incident to pulling, the construction shown and described permits of the therewith a throat for loosely receiving butt of. a coupler, the longitudinal mem- 

